AC/DC Power Supply Test Systems

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Chroma’s C8000 Automated Test Systems are the ultimate solution for AC/DC Power Supply testing, common power supplies are Linear, Switch Mode and Programmable Power Supplies, plus AC Adapters. Our test systems are application oriented making them the most cost effective for both high speed production applications as well as design verification.

To meet the power supply test requirements of today’s environment, the Model 8000 comes standard with an off-the-shelf pre-written test item library covering most industry standard power supply tests. The comprehensive test items covers 7 categories of power supply testing requirements, which includes output performance, input characteristics, regulation tests, timing and transient, and protection tests. Users may also create new test items by using a special test item editing function. This gives users the capability to expand the test library unlimitedly.

Customized Test Fixtures

The test fixture, a device that interfaces between the ATS and UUT, is necessary for automated testing. Due to different form factors and various connector types, it is impossible to find an off the shelf test fixture that can fit all test requirements. The Chroma 8000 ATS support team not only helps plan and develop the ATS, but the also provide their expertise to tailor a test fixture to the customer’s needs.

Input/Ouput Characteristics

Maximum Input Voltage

Maximum Input power

Maximum Input Current

Maximum Output Voltage

Maximum Output Power

Maximum Output Current

Maximum Number of Outputs

AC/DC

500 VAC

54 KVA

432 A

600 VDC

78 KW

5,000 A

32

Comprehensive Test Items

The Model 8000 automatic power supply test system comes standard with an off-the-shelf test item library covering most industry standard power supply tests. Unlike traditional ATE software, users do not need to have programming language background to create new test items. Instead the Model 8000 allow users to use pre-compiled test items and to simplify defining test conditions and specifications.

The comprehensive test items cover 7 categories of power supply testing requirements. "Output Performance" checks the general performances of the UUT. "Input Characteristic" verifies the input parameters of a power supply. "Regulation" tests the stability of the UUT under varying line-in and loading changes. "Timing & Transienst"measures the transient state during turn-on, turn-off or when events occurred. "Protection Tests" triggers the protection circuit of the power supply. Finally, the "Special Test" and the "Special Features" provides means to test the most sophisticated power supplies when unique test routines are needed.

Output Performances

1. DC Output Voltage

2. DC Output Current

3. Peak-Peak Noise

4. RMS Noise

5. Current Ripple*

6. Efficiency

7. In-Test Adjustment

8. Power Good Signal

9. Power Fail Signal

10. P/S ON Signal

11. Extended Measure

12. Waveform Capture

13. Overshoot Voltage

Input Characteristics

14. Input Inrush Current

15. Input RMS Current

16. Input Peak Current

17. Input Power

18. Current Harmonics Against Regulations

19. Input Power Factor

20. Input Voltage Ramp

21. Input Frequency Ramp

22. AC Cycle Drop Out

23. PLD Simulation

Regulation Tests

24. Current Regulation

25. Voltage Regulation

26. Total Regulation

Timing & Transient

27. Power Up Sequence

28. Power Down Sequence

29. Transient Response Time

30. Transient Spike

31. Turn On Time

32. Rise Time

33. Fall Time

34. Hold-Up Time

35. Extra Timing

36. Tracking

37. Swing Check

Protection Tests

38. Short Circuit

39. OV Protection

40. UV Protection

41. OL Protection

42. OP Protection

Special Tests

43. Fan Speed

44. Auto-Alignment*

45. Correlation Test

46. UUT Measurement Verification Test

47. High DI/DT Loading

Special Features

48. Can Bus Read/Write

49. IC Read/Write*

50. GPIB Read/Write

51. RS-232 Read/Write

52. RS-485 Read/Write*

53. TTL Signal Control

54. Relay Control

55. Bar Code Scan*

56. DMM Mode

* These test items need to be created by users by using test item editor due to the variety of the UUTs.
And unlimited customized or user defined test items are allowed.

Model 66202 Digital Power Meter includes a 2-shunt design to provide highly accurate readings for both low and high current measurements. In addition to the parameters measured by Model 66201, the 66202 includes Inrush current, Total Harmonic Distortion of V/I, and Energy measurements. With these practical functions, The Model 66202 is suitable for the most demanding of R&D and quality control departments.

Chroma is the largest worldwide provider of power testing instruments and systems including programmable AC Power Sources and DC Power Supplies, AC Loads and DC Electronic Loads, Digital Power Meters, MultiMeters, and Automated Testing Systems. Our programmable power supplies, electronic loads, measurement instruments and automated testing systems provide solutions for applications in Aerospace, Defense, Military, Automotive, Medical, Battery, Solar, Marine, and Regulatory Testing. Customized systems and instrumentation for power supply test and characterization include architecture and platforms built to fit diverse bench-top, R&D, design verification and automated test system technical requirements and specifications. Applications include testing of battery chargers, DC-DC converters, ATX and other types of AC power supplies, batteries, fuel cells, photovoltaic arrays and point-of-load voltage regulators.

With offices and manufacturing facilities located worldwide, Chroma is renowned for it’s commitment to excellence in product, service, and innovation. Chroma Systems Solutions corporate office is located in Lake Forest, CA. For more company and product information call us at (949) 600-6400.